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• W3217285445 abstract "Heart rate (HR) is a critical signal for reflecting human physical and mental conditions, and it is beneficial for diagnosing neurological and cardiovascular diseases due to its excellent accessibility. However, traditional HR measurement devices have limited usability and convenience. Recent studies have shown that the optical absorption variation of human skin due to blood volume variation in cardiac cycles can be acquired from facial videos and used to estimate HR in a noncontact manner. However, the advanced noncontact HR estimation approaches are based on a single HR information source, resulting in unsatisfactory estimation results due to noise corruption and insufficient information. To address these problems, this article proposes a multimodal information fusion framework for noncontact HR estimation. First, feature representation maps are used to effectively extract periodic signals from facial visible-light and thermal infrared videos. Then, a temporal-information-aware HR feature extraction network (THR-Net) for encoding discriminative spatiotemporal information from the representation maps is presented. Finally, based on a graph convolution network (GCN), an information fusion model is proposed for feature integration and HR estimation. Experimental and evaluation results of five different metrics on two datasets show that the proposed approach outperforms the state-of-the-art approaches. This article demonstrates the advantage of multimodal information fusion for noncontact HR estimation." @default.
• W3217285445 created "2021-12-06" @default.
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• W3217285445 date "2022-01-01" @default.
• W3217285445 modified "2023-10-14" @default.
• W3217285445 title "Multimodal Information Fusion Approach for Noncontact Heart Rate Estimation Using Facial Videos and Graph Convolutional Network" @default.
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• W3217285445 doi "https://doi.org/10.1109/tim.2021.3129498" @default.
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